use anyhow::Context;
use assert_cmd::prelude::*;
use predicates::prelude::*;
use tempfile::TempDir;
use std::process::Command;

#[test]
fn help_prints_correctly() -> Result<(), anyhow::Error> {
    let tempdir = TempDir::new()?;
    let datadir = tempdir.path().to_str().context("Tempdir path was not valid utf8")?;

    Command::cargo_bin("aspm")?
        .env("ASPM_DATA_DIR", datadir)
        .arg("--help")
        .assert()
        .success()
        .stdout(predicate::str::starts_with(env!("CARGO_PKG_DESCRIPTION")));

    Command::cargo_bin("aspm")?
        .env("ASPM_DATA_DIR", datadir)
        .arg("-h")
        .assert()
        .success()
        .stdout(predicate::str::starts_with(env!("CARGO_PKG_DESCRIPTION")));

    Command::cargo_bin("aspm")?
        .env("ASPM_DATA_DIR", datadir)
        .assert()
        .code(2)
        .stderr(predicate::str::starts_with(env!("CARGO_PKG_DESCRIPTION")));

    Ok(())
}